MAC address vendor

Airvod Limited MAC Prefix 00:1B:B4 — Vendor identified; device unknown

Primary prefix
00:1B:B4
Block
MA-L

Summary

// what this is
Airvod is registered to MAC prefix 00:1B:B4 in the IEEE OUI database. When a device's MAC address begins with 00:1B:B4, that block was registered by Airvod — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
The supplied sources support the MA-L registry assignment and RFC 7042’s general guidance on MAC identifiers and Group and Local bits; they do not establish a device category, product, industry, website, organization status, or related vendors for this legal entity.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: High  ·  2 sources  ·  How this page is checked

A MAC address beginning with 00:1B:B4 matches the MA-L registry assignment to Airvod Limited; the assignment alone does not identify a particular device or product. The supplied records provide no product catalog, device mapping, or independent company description, so those details remain unestablished.

This is a 24-bit prefix, leaving 24 bits for the remaining address. Its first octet is 00: the Group bit and Local bit are both zero. A captured address matching all 24 prefix bits is consistent with this assignment, but does not establish who deployed it, how common it is, or whether it is safe. IEEE CSV records shown here do not include assignment dates.

RFC 7042 explains that MAC identifiers may use an initial OUI or a longer assigned prefix and describes the Group and Local bits. The 24 remaining bits allow 16,777,216 possible suffix values; that is a mathematical address space, not a count of devices or shipments.

Matching prefix
00:1B:B4 (24 bits); match the first three octets [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device identification
Unknown; no device category is mapped to this exact prefix in the supplied evidence [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Company
Airvod Limited [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Registry
MA-L [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Prefix
00:1B:B4 [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Country
Ireland [Confirmed] — https://standards-oui.ieee.org/oui/oui.csv
Device types
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Products
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Industry
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Website
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Organization status
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Related vendors
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
Historic prefix
Unknown [Unknown] — https://standards-oui.ieee.org/oui/oui.csv
[ 02 ] — OUI prefixes

Assignments by IEEE.

1
// registered prefixes1
  1. 00:1B:B4MA-L
[ 03 ] — Related

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